<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>登录</title>
</head>

<body>
  <form>
    <fieldset>
      <legend>登录</legend>
      <p>
        <input required name="xxx" placeholder="账号/手机" tabIndex="1" autofocus>
      </p>
      <p>
        <input required name="yyy" placeholder="密码" tabIndex="2">
        <a href="/forget" tabIndex="3">忘记密码？</a>
      </p>
      <p>
        <input required name="zzz" placeholder="验证码" tabIndex="4">
        <img src="" title="验证码">
      </p>
      <p>
        <button type="submit">
          登录
        </button>
      </p>
      <p>
        <a href>立即注册</a>
      </p>
    </fieldset>
  </form>
</body>

</html>